Not a U.S. government website. NDD is an independent vulnerability database by Volerion and is not affiliated with or endorsed by NIST or NVD.

CVE-2026-46636 Details

Description

Twig is a template language for PHP. From version 1.0.0 to before version 3.27.0, SecurityPolicy::checkMethodAllowed() unconditionally whitelists all method calls on instances of Twig\Markup. Twig\Markup is not final, so subclasses inherit the bypass. An application that passes an object of a Markup-derived class into a sandboxed template (typically to mark a chunk of HTML as safe) inadvertently exposes every public method of that subclass to template authors, regardless of the configured allowedMethods list. This issue has been patched in version 3.27.0.

Metrics

CVSS 3.x Severity and Vector Strings:

No CVSS 3.x data is available for this CVE.

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URL	Source(s)	Tag(s)
http://github.com/twigphp/Twig/releases/tag/v3.27.0	[email protected]
https://github.com/twigphp/Twig/security/advisories/GHSA-64jr-qjx4-w2fh	[email protected]
https://security-tracker.debian.org/tracker/CVE-2026-46636	[email protected]
https://security-tracker.debian.org/tracker/DSA-6311-1	[email protected]
https://symfony.com/blog/cve-2026-46636-sandbox-filter-tag-and-function-allow-list-bypass-when-sandbox-state-changes-between-renders	[email protected]

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-1336	Improper Neutralization of Special Elements Used in a Template Engine	[email protected]

Affected Products

No affected product data is available for this CVE.

Change History

2 change records found show changes

Date	Action	Recorded By
Sep 8, 2026	CVE Modified	CISA-ADP
Sep 4, 2026	New CVE Received	[email protected]